CN104709832B - For the fish tail board device for two structural details for connecting derrick crane - Google Patents
For the fish tail board device for two structural details for connecting derrick crane Download PDFInfo
- Publication number
- CN104709832B CN104709832B CN201410758344.9A CN201410758344A CN104709832B CN 104709832 B CN104709832 B CN 104709832B CN 201410758344 A CN201410758344 A CN 201410758344A CN 104709832 B CN104709832 B CN 104709832B
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- China
- Prior art keywords
- fish
- structure element
- board device
- mast
- cantilever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/28—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
- B66C23/283—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements
- B66C23/286—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements with locking devices
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Architecture (AREA)
- Jib Cranes (AREA)
- Civil Engineering (AREA)
- Artificial Fish Reefs (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to a kind of fish tail board device (14) for being used to be connected to the first structure element (12a) of derrick crane on the second structural detail (12b), the equipment includes at least one fish platee (26), at least one fish platee is from the coupling part (38) that the base segments (34) being connected to by main weldering pearl (70) on first structure element (12a) component (16a) are extended up on the component (16b) for being configured to be connected to the second structural detail (12b), it is characterized in that, the opening (56) that base segments (34) display of fish platee (26) is demarcated by the peripheral wall being connected to by secondary bead on first structure element (12a) component (16a), with the mechanical stress being limited on main weldering pearl.
Description
Technical field
(such as used on building sites the present invention relates to one kind for first structure element to be connected into derrick crane
Crane) mast or cantilever the second structural detail on fish tail board device.
The present invention relates more specifically to a kind of mast including being welded on crane or cantilever or is intended to times being assembled
The fish platee of at least one fish platee what on its structural detail (such as such as boom support member, reverse cantilever or tie-rod)
Equipment.
Background technology
Derrick crane normally includes mast, and it vertically extends from carrying ground；And cantilever, it is in crane
Normal use opening position is either flatly (distribution formula cantilever crane) or according to around trunnion axis (pitching type cantilever lifting
Machine) incidence angle variable integrally extend.
Normally, the mast of crane includes multiple structural details, should when crane is used into opening position installed in it
Multiple structural details must assemble therebetween, and when break-down crane, the plurality of structural detail separates each other.
On their length, the structural detail of derrick crane is designed such as being easy to crane in the disassembled condition
Transport, and also allow to adjust the total length of crane with limitation according to this crane service condition at the scene.
The normally structural detail of the mast with square horizontal section, each includes four corner members, this four
Lattice structure in the perpendicular that corner member passes through four sides for being positioned at structure mast element combines in couples.
Each corner member normally includes that there is the substantially tubular profile of square cross section or simple " L " shape to cut
Face support.
To form the mast of crane, these structural details are vertically disposed on top of each other, and they pass through
With reference to the tight spacing of their own corner member end it is secured to one another connect.
Therefore, it will thus provide fish tail board device with perform between the corner member for belonging to upper folded structure mast element " end is arrived
End " connection, these connections are it should be ensured that the continuity of the corner member of mast and indulging due to power caused by the top of crane
Transmission to power and cross force.
Further, since above-mentioned, these fish tail board devices should perform rigidity and also dismountable connection.
For this purpose it is known that a kind of be used to first structure element being connected on the second structural detail of derrick crane
Fish tail board device, it includes at least one fish platee, and at least one fish platee is connected to along main shaft from by main weldering pearl
Base segments extension on the component of one structural detail, until the connecting portion that the free end along main shaft from the component protrudes
Point, the coupling part is configured to be connected on the component of the second structural detail.
The first hole is demarcated in the coupling part of fish platee and the second structural detail is demarcated the second complementary hole, the first hole and the
Two holes are suitable to intersect so that first structure element is removably connected on the second structural detail by connecting shaft.
For example, described in document FR-A-2185217 and show the fish tail board device of this type.
, will although the fish tail board device of this type allows effective connection of two structural details of derrick crane
The bead that the base segments of fish platee are connected on associated components can in the presence of the notable mechanical stress of fish platee is sent to
It can be ruptured due to fatigue.
The content of the invention
It is contemplated that limit the risk of this bead rupture.
For this purpose, the present invention proposes a kind of the second structure for being used to for first structure element to be connected to derrick crane
Fish tail board device on element, fish tail board device include at least one fish platee, and at least one fish platee is along main shaft from logical
The base segments extension that main weldering pearl is connected on the component of first structure element is crossed, until the freedom along main shaft from the component
The coupling part that distal process goes out, and the coupling part is configured to be connected on the component of the second structural detail, it is characterised in that fish
The base segments of tailgate show the opening demarcated by the peripheral wall being connected to by secondary bead on the component of first structure, with limitation
Mechanical stress on main weldering pearl.
Therefore, concentration of the part that secondary bead allows to receive mechanical stress with limit mechanical stress on main weldering pearl.
According to another feature, the base segments display of fish platee connects distal ports on the connection portion, and display
The U-shaped proximal segment of unitary circular shape free end, the opening are formed in the circular free end.
Here the round-shaped geometry " rupture " for allowing to avoid in the proximal segment of mechanical stress concentration is made, to ensure stress
More preferable distribution.
Similarly, the proximal segment of base segments shows the integral planar shape with constant cross-section and distal ports are shown
There is the inclined ramp shape that proximally section is integrally increased up the section of the coupling part of the fish platee.
In addition, the distal ports of base segments are laterally demarcated by two linear edges parallel to main shaft, each straight line
Edge all shows to form at least one of chamfering of the housing for main weldering pearl.
According to preferred embodiment, opening shows cylindrical shape.
According on the other hand, the fish tail board device includes being fixed on two relative exterior faces and by first
At least two fish platees that structural detail limits, two fish platees first holes of description and the second hole, first hole and the second hole
It is coaxial and be configured to receive the removable connecting shaft suitable for making the interconnection of first structure element and the second structural detail.
The invention further relates to the component for derrick crane, the component includes first structure mast element and the second structure
Mast element, first structure element include at least one corner member for being equipped with fish tail board device, and the fish tail board device is arranged as
First structure element is connected on the second structural detail.
The present invention also aims to the cantilever applied to crane, and the present invention relates to the component for derrick crane, the component
Including the first cantilever design element and the second cantilever design element, first structure element includes being equipped with fish tail board device at least
One component, the fish tail board device are arranged as first structure element being connected on the second structural detail.
More normally, in a similar way, the present invention also aim to be applied to be connected to via at least one component it is another
Any structural detail of individual structural detail.
Brief description of the drawings
When reading following detailed description, further feature of the invention will become apparent with advantage, in order to manage
Solve following description with reference to the accompanying drawings, wherein：
Fig. 1 is show to be equipped with the mast of the derrick crane of the fish tail board device according to the present invention knocked-down first
The stereogram of structural detail and the second structural detail；
Fig. 2 is the side view of the fish platee for the fish tail board device for showing Fig. 1；
Fig. 3 is the front view of the fish platee for the fish tail board device for showing Fig. 1；
Fig. 4 is along Fig. 3 axle 4-4 section view, and it illustrates the fish platee of Fig. 1 fish tail board device；
Fig. 5 is along Fig. 3 axle 5-5 section view, and it illustrates the fish platee of Fig. 1 fish tail board device；
Fig. 6 is the fish platee of the invention for showing to be connected with each other according to two structural details of the cantilever for making derrick crane
The stereogram of equipment.
Embodiment
In specification and claims, by the correspondingly top of reference picture 1 and bottom without restriction using statement
" on ", " under " and " downward ", " upward ".
In addition, in order that specification understands with claims, trihedral L, V, T that reference is pointed out in the accompanying drawings are unlimited
Surely term " longitudinal direction ", " vertical " and " transverse direction " is used.
In all these accompanying drawings, same or similar reference represents the same or similar part of part or part
Group.
In fig. 1 it is shown that the component 10 of derrick crane, it includes continuous the with square horizontal cross-section
One structural detail 12a and the second structural detail 12b (partly showing).
First structure element 12a and the second structural detail 12b is identical, and their element is referred to by identical reference
Show, alphabetical " a " follows the identical reference to follow the identical attached for first structure element 12a and letter " b "
Icon is remembered for the second structural detail 12b.
In the service arrangement for the crane that wherein crane is located on level ground, first structure element 12a and second
Structural detail 12b is intended to vertically assemble by the folded mode of several fish tail board devices more than 14.
Each of first structure element 12a and the second structural detail 12b each include four corner members 16a, 16b, and this four
Lattice structure 18a, 18b in the perpendicular that individual corner member passes through four sides for being positioned at associated structural elements 12a, 12b
Combine in couples.
In order to complicate specification, first structure element 12a is hereinafter only described in detail.
Here the first element 12a each corner member 16a forms the tubulose wheel of the horizontal cross-section with overall square
Exterior feature, the tubular profile is demarcated by four face 20a and two by welding together " L " supports are formed.
Similarly, each corner member 16a shows vertically relative the first upper end 22a and the second lower end 24a, the first knot
Constitutive element part 12a each component 16a the first upper end 22a be configured to under the second of the second structural detail 12b associated components 16b
End 24b is assembled together.
For this purpose, first structure element 12a each corner member 16a the first upper end 22a is equipped with fish platee and set
Standby 14.
For the sake of clarity, only description is referred to as " a fish platee of fish tail board device 14 " in the context of this specification
Equipment.
As can be seen in Figure 1, fish tail board device 14 includes the first fish platee for forming first pair of fish platee 26,28
26 and second fish platee, first pair of fish platee 26,28 face each other on related corner member 16a two opposite face 20a
It is fixed.
Similarly, fish tail board device 14 includes the 3rd fish platee 30 and the 4th fish tail for forming second pair of fish platee 30,32
Plate 32, second pair of fish platee 30,32 on related corner member 16a two other opposite face 20a face each other it is fixed.
First pair of fish platee 26,28 is similar with second pair of fish platee 30,32, so as to only be retouched later in specification
State first pair of fish platee 26,28.
Similarly, the fish platee 26,28 of first pair of fish platee is similar, hereinafter only describes referred to as " fish in detail
One fish platee of tailgate 26 ".
First fish platee 26 extends with the second fish platee 28 along principal axis A, and it is herein from base segments 34 until connection
Part 38 is vertical
The coupling part 38 each vertically protruded along principal axis A from associated components 16a free end, the first hole of all demarcating
42 and the second hole (not shown).
First hole 42 coaxially extends laterally to face each other with the second hole along the axle perpendicular to principal axis A.
Complementally, fish tail board device 14 includes lateral connection axle 46, its extend through the first hole 42 with the second hole, and
Extend through by the complementary lateral passage 48 of the second structural detail 12b associated components 16b the second lower end 24b descriptions, so that
First structure element 12a is removably connected with each other with the second structural detail 12b.
For this purpose, connecting shaft 46 includes shoulder (invisible in Fig. 1), it forms the first laterally docking in first end
Part；And removable division ring 50, it forms the second tranverse joint piece in the second opposite end.
According on the other hand, as can be Fig. 2 sees into Fig. 4, the company of showing of base segments 34 of fish platee 26
The upper distal ports 52 being connected on coupling part 38, and proximal segment 54 under U-shaped.
The proximal segment 54 of base segments 34 shows the free end of unitary circular shape, and the free end, which is shown, passes through annular
The cylindrical shape opening 56 that peripheral wall 57 is demarcated.
In addition, the proximal segment 54 of base segments 34 shows the integral planar shape with constant cross-section.
According to Fig. 2, distal ports 52 show the thickness more than the thickness of proximal segment 54 along the longitudinal direction perpendicular to principal axis A
Degree.
In addition, the direction formation that distal ports 52 extend up to the coupling part 38 of fish platee 26 along proximally section 54 has
The inclined ramp of overall increased cross section upwards.
In addition, as that can see in figs. 3 and 4, the distal ports 52 of base segments 34 pass through first edge 58 and
Two edges 60 are laterally demarcated, and first edge 58 and second edge 60 are straight and vertical, and are extended parallel to principal axis A.
Each of first edge 58 and second edge 60 each displays and component 16a face 20a forms the first housing 66
With the chamfering 62,64 of the second housing 68.
The base segments 34 of fish platee 26 are by extending to the periphery of U-shaped proximal segment 54 and extending to the of distal ports 52
The periphery main weldering pearl 70 at one edge 58 and the top of second edge 60 is connected on component 16a face 20a.
As that can see in Fig. 4, main weldering pearl 70 is partially housed in the first housing 66 formed by chamfering 62,64
With in the second housing 68.
Complementally, reference picture 3 and Fig. 5, the base segments 34 of fish platee 26 are connected to component 16a face by secondary bead 72
On 20a, the wall 57 of opening 56 is connected on component 16a face 20a by the secondary bead 72, should to limit the machinery on main weldering pearl
Power.
Secondary bead 72 allows to reduce the mechanical stress at the lower end of main weldering pearl 70.
In fact, seem that stress is intended to concentrate on the lower free end for being positioned at fish platee 26 and passed through in figure 3
In region Z1 shown in phantom, the concentration of this stress can cause the damage of main weldering pearl 70.
As shown in Figure 3, secondary bead 72 allows mechanical stress to be distributed in other region Z2.
In addition, the shape of fish platee 26 is optimized to reduce the change of local stiffness, while fish is ensured with enough materials
Transmitted with ensuring power between fish platee 26 and component 16a in tailgate section.
As non-limiting examples, opening 56 is not limited to cylindrical shape.
In fact, opening 56 can show such as rectangle or any other annular shape of ellipse.
The invention further relates to the component 74 for the derrick crane described in Fig. 5, component 74 is included in the logical of crane
The the first cantilever design element 76 and the second cantilever knot often generally horizontally, perpendicular to mast extended using each of opening position
Constitutive element part 78.
Here the structural detail 78 of first structure element 76 and second of cantilever shows triangular-section and each of which
All include three components 79 being connected with each other by grid.
In addition, the structural detail 78 of first structure element 76 and second of cantilever be intended to by with the foregoing class of fish tail board device 14
As the mode of fish tail board device 14 be assembled together end-to-endly, the fish tail board device 14 includes the welding with aforementioned type
The first fish platee 82 and the second fish platee 84 of opening 56.
The current description of the present invention is provided by way of non-limiting examples.
It should be understood that the present invention also aim to be applied to by fish platee be connected to via at least one component it is another
Any structural detail of individual structural detail.
Claims (8)
1. a kind of fish tail board device (14), it is used for the first structure element (12a) of the mast of derrick crane or cantilever
First structure element (76) is connected on the second structural detail (12b) of mast or the second structural detail (78) of cantilever, described
Fish tail board device includes at least one fish platee (26), and at least one fish platee (26) is along main shaft (A) from passing through main weldering
Pearl (70) is connected on the component (16a) of the first structure element (12a) of the mast or the first structure element (76) of cantilever
Base segments (34) extend up to the coupling part that free end along the main shaft (A) from the component (16a) protrudes
(38), and the coupling part (38) be configured to be connected to the mast the second structural detail (12b) or cantilever second
On the component (16b) of structural detail (78),
Characterized in that, the base segments (34) display of the fish platee (26) is described by being connected to by secondary bead (72)
Peripheral wall (57) on the component (16a) of the first structure element (12a) of mast or the first structure element (76) of cantilever
The opening (56) of description, with the mechanical stress being limited on the main weldering pearl (70).
2. fish tail board device (14) according to claim 1, it is characterised in that the base portion portion of the fish platee (26)
(34) display is divided to be connected to the distal ports (52) on the coupling part (38), and show the free end of unitary circular shape
U-shaped proximal segment (54), the opening (56) are formed in the round-shaped free end.
3. fish tail board device (14) according to claim 2, it is characterised in that the U-shaped of the base segments (34)
Proximal segment (54) shows the integral planar shape with constant cross-section and the distal ports (52) are shown with from described
Proximal segment (54) is integrally increased up the inclined ramp shape in the section of the coupling part (38) of the fish platee (26).
4. the fish tail board device (14) according to any one of Claims 2 or 3, it is characterised in that the base segments
(34) the distal ports (52) are laterally demarcated by two linear edges (58,60) parallel to the main shaft (A), each
Linear edge all shows to form at least one of chamfering (62,64) of the housing (66,68) for the main weldering pearl (70).
5. the fish tail board device (14) according to any one of claim 1-3, it is characterised in that opening (56) display
Cylindrical shape.
6. the fish tail board device (14) according to any one of claim 1-3, it is characterised in that the fish tail board device
(14) include being fixed on the first structure element (12a) or outstanding on two relative exterior faces (20a) and passing through the mast
At least two fish platees (26) that the first structure element (76) of arm limits, described two fish platees (26) demarcate the first hole (42)
With the second hole, first hole (42) and the second hole are coaxial and be configured to receive suitable for making the first structure element of the mast
The first structure element (76) of (12a) or cantilever and the second structural detail (12b) of the mast or the second structural elements of cantilever
The removable connecting shaft (46) that part (78) is connected with each other.
7. a kind of component for derrick crane, the component includes the of the first structure element (12a) of mast and mast
Two structural details (12b), the first structure element (12a) of the mast include being equipped with according to any one of the claims
At least one component (16a) of described fish tail board device (14), at least one component is corner member, and the fish platee is set
It is standby to be arranged as the first structure element (12a) of the mast being connected on the second structural detail (12b) of the mast.
8. a kind of component for derrick crane, the component includes the first structure element (76) and the second of cantilever of cantilever
Structural detail (78), the first structure element (76) of the cantilever include being equipped with according to any one of claim 1 to 6
Fish tail board device (14) at least one component (79), the fish tail board device is arranged as the first structure of cantilever member
Part (76) is connected on the second structural detail (78) of the cantilever.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1362431A FR3014509B1 (en) | 2013-12-11 | 2013-12-11 | LAUNDRY DEVICE FOR BINDING TWO STRUCTURAL ELEMENTS OF A TOWER CRANE |
| FR1362431 | 2013-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104709832A CN104709832A (en) | 2015-06-17 |
| CN104709832B true CN104709832B (en) | 2018-04-03 |
Family
ID=50424464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410758344.9A Active CN104709832B (en) | 2013-12-11 | 2014-12-10 | For the fish tail board device for two structural details for connecting derrick crane |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP2883829B1 (en) |
| KR (1) | KR20150068329A (en) |
| CN (1) | CN104709832B (en) |
| AU (1) | AU2014271325A1 (en) |
| ES (1) | ES2566142T3 (en) |
| FR (1) | FR3014509B1 (en) |
| HK (1) | HK1209716A1 (en) |
| RU (1) | RU2014149672A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271019A (en) * | 2015-09-30 | 2016-01-27 | 徐州建机工程机械有限公司 | Connecting structure of main chords and web members of tower crane |
| CN105271018A (en) * | 2015-09-30 | 2016-01-27 | 徐州建机工程机械有限公司 | Detachable tower crane wrap frame |
| FR3111342B1 (en) | 2020-06-12 | 2022-08-12 | Manitowoc Crane Group France | Anti-fall safety device to retain and prevent the fall of a connecting pin |
| CN112279119B (en) * | 2020-11-04 | 2023-08-04 | 常德市荣程机械有限公司 | Tower crane standard joint connecting sleeve |
| FR3129185B1 (en) | 2021-11-15 | 2023-10-27 | Manitowoc Crane Group France | Device for assembling/disassembling a connecting pin for end-to-end assembly of two structural elements |
| ES2964817A1 (en) * | 2022-09-08 | 2024-04-09 | Linden Comansa S L | MOORING JOINT FOR COUPLING BETWEEN STRUCTURAL MODULES OF TOWER CRANES (Machine-translation by Google Translate, not legally binding) |
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|---|---|---|---|---|
| FR1336224A (en) * | 1962-07-16 | 1963-08-30 | Expl Des Etablissements Boilot | Splicing device |
| FR2135024A1 (en) * | 1971-03-16 | 1972-12-15 | Potain Sa | |
| FR2185217A5 (en) * | 1972-05-18 | 1973-12-28 | Potain Sa | |
| EP0530114A1 (en) * | 1991-08-30 | 1993-03-03 | Potain | Dismountable assembly device for metallic framework elements |
| CN2219286Y (en) * | 1994-12-22 | 1996-02-07 | 波丹公司 | Mast structural member for tower crane |
| EP0974546A1 (en) * | 1998-07-24 | 2000-01-26 | Potain | Assembly device for metallic lattice members |
| KR20080096144A (en) * | 2007-04-27 | 2008-10-30 | 케이엔에프중공업주식회사 | Mast joint for tower crane |
| CN201850084U (en) * | 2010-10-08 | 2011-06-01 | 长沙中联重工科技发展股份有限公司 | Connecting structure for crane boom and upper support and crane provided therewith |
| CN202369293U (en) * | 2011-11-30 | 2012-08-08 | 中联重科股份有限公司 | Cantilever beam component and reinforcing plate |
-
2013
- 2013-12-11 FR FR1362431A patent/FR3014509B1/en not_active Expired - Fee Related
-
2014
- 2014-12-05 AU AU2014271325A patent/AU2014271325A1/en not_active Abandoned
- 2014-12-08 ES ES14196718.2T patent/ES2566142T3/en active Active
- 2014-12-08 EP EP14196718.2A patent/EP2883829B1/en active Active
- 2014-12-10 KR KR1020140177714A patent/KR20150068329A/en not_active Application Discontinuation
- 2014-12-10 RU RU2014149672A patent/RU2014149672A/en not_active Application Discontinuation
- 2014-12-10 CN CN201410758344.9A patent/CN104709832B/en active Active
-
2015
- 2015-10-22 HK HK15110392.6A patent/HK1209716A1/en not_active IP Right Cessation
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1336224A (en) * | 1962-07-16 | 1963-08-30 | Expl Des Etablissements Boilot | Splicing device |
| FR2135024A1 (en) * | 1971-03-16 | 1972-12-15 | Potain Sa | |
| FR2185217A5 (en) * | 1972-05-18 | 1973-12-28 | Potain Sa | |
| EP0530114A1 (en) * | 1991-08-30 | 1993-03-03 | Potain | Dismountable assembly device for metallic framework elements |
| CN2219286Y (en) * | 1994-12-22 | 1996-02-07 | 波丹公司 | Mast structural member for tower crane |
| EP0974546A1 (en) * | 1998-07-24 | 2000-01-26 | Potain | Assembly device for metallic lattice members |
| KR20080096144A (en) * | 2007-04-27 | 2008-10-30 | 케이엔에프중공업주식회사 | Mast joint for tower crane |
| CN201850084U (en) * | 2010-10-08 | 2011-06-01 | 长沙中联重工科技发展股份有限公司 | Connecting structure for crane boom and upper support and crane provided therewith |
| CN202369293U (en) * | 2011-11-30 | 2012-08-08 | 中联重科股份有限公司 | Cantilever beam component and reinforcing plate |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2566142T3 (en) | 2016-04-11 |
| CN104709832A (en) | 2015-06-17 |
| KR20150068329A (en) | 2015-06-19 |
| EP2883829B1 (en) | 2016-02-24 |
| FR3014509B1 (en) | 2016-01-01 |
| EP2883829A1 (en) | 2015-06-17 |
| AU2014271325A1 (en) | 2015-06-25 |
| HK1209716A1 (en) | 2016-04-08 |
| FR3014509A1 (en) | 2015-06-12 |
| RU2014149672A (en) | 2016-07-10 |
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